Resilient wheel



Jan. 1, 19,29, l l

J. B. DAVILA RESILIENT WHEEL Filed Feb. 23, 1927 INVENTOR an la BY r ATTORNEY s Patented Jan. 1, 1929.

UEE. STT@ als JUAN B. DAVILA, on new YORK. N. Y.

RESILIENT WHEEL.

Application filed February 23, 1327.

This invention relates generally to vehicle wheels, and has more particular reference to resilient wheels of a non-pnuematic type in which there is no possibility of puncture.

The invention has for an object the provision of a novel type of resilient -wheel which will act very eiiicientlv, and which can be manufactured and sold at a reasonable cost. y

For further comprehension of the invention and of the objectsl and advantages thereof, reference will be had to the following description and accompanying drawing, and to the appended claims in which the various novel features of the invention are more particularly set forth.

Referring to the drawing forming a material part of the disclosure:

Fig. 1 is a face view of a wheel constructed according to this invention.

Fig. 2 is an enlargedfragmentary longitudinal sectional view thereof.

Fig. 3 is a transverse sectional view taken on the line of Fig. 2.

Fig. 4 is a transverse sectional view, taken on the' line i- 4 of Fig. 2.

Fig. 5 is a view similar to that shown in Fig. i but of a modified form of the invention.

Fig. 6 is an enlarged fragmentary view similar to Fig. 5, but showing another modification of the invention. Y

The reference numeral 10 indicates genorally the hub of a wheel having a plurality 0f small recesses 11 in which pins 12 are secured. The pins 12-engage the inner ends of expansion springs 13 formed at the outer ends with straight portions 14 and hooked end extremities 15. Vashers 16 are engaged on the straight portions 14 and are riveted, or screwed to other washers 17, clamping i therebetween a holding member 13 formed by a plurality of layers of wire screen material, and having apertures 19 to accommodate the hooked end extremitiesl 15 of the expansion springs 13. Projecting from the huh 10 and straddling the springs 13 are posts 20 formed with central bores 21 in which' rods 22 slidably engage. Compression springs 23 housed in the bores 21 act against the inner ends of the rods 22 urging the rods outwards, the rods being formed with elongated apertures 24 in which pins 25 secured to the posts 20, engage, and limit the possi ble moton of the rods. The outer ends of these rods are pivotally secured to plates Serial No. 170,153.

26 in elongated apertures, which plates 26 are riveted or screwed to other plates 27 and these plates 26, 27 engage on opposite sides of the holding member 18. g Y

The edges of vthe holding member 13 are turned around the feet 23 of the solid rubber, or other material tire 29, and ay plurality of metallic clamping members 3() engage over these edges, while bolts 31 or the like. pass through the clamping members 30 of one side to the members 30 ony the other side.

ln the modification shown in 5, a pair of springs 13 are used, and plates 16 and 17 engage the outer ends of these springs, similarto the manner in which the plates 16 and 17 engaged. the springs-13.

ln the modioation shown in Fig. 6, the distance between the outer ends ofVA springs 13.may be varied. The hook yends 15 of the springs 13, engage theshanks 32V of slides 33 formed with dove-tailed portions 34 engaged in dove-tailed grooves 35 in plates 17a.V Recesses 36, accessible by covers 37 are provided with compression springs 38, acting againstthe slides 33, normally urging the slides against a cani 39 ona shaft 40V rotatablein the plate 17a, and having a head 41 for manual operation.v Set screws 4t2 engage in the cam 39 and abutragainst the plate 17EL to lock the rcam in adjust-ed posttions. The plates 16EL are connected to plates 17 by rivets, or the like, and the holding member 18 is clamped therebetween.

ln operation, shocks and bumps received on the tire 29 are very poorly transmitted to the hub 10, since springs 13 and 21 act as cushions. The posts 20 and the rods 22 act to stiften the wheel sideways, without subtracting from the cushioning of the springs. Besides two springs allow a wider range of design possibilities as far as flexibility is concerned.. In the modification shown in Fig. 6, the set screws 4t2 may be loosened, head 41 turned to turn thev cam 39, and the springs 38 act to move the slides 33 as allowed by the cam 39. This changes the distance between the outer ends of springs 13 and since the inner ends of the springs are not moved, the angles of the springs to the vertical changes, and therefore the cushioning effect changes, since now a different resultant force of the springs acts in the cushioning` direction' l f While I have illustrated and described my invention with some degree of particularity, realize that in practice various alterations therein may be made. I therefore reserve the rightand privilege of changing the details of construction or altering the arrangement of the correlated parts without departing from the spirit or the scope of the appended claims.

Having thus described my invention, what I claim as new and desire to secure by United States Letters Patent is:

l. A vehicle wheel, comprising a hub, a tire of resilient material, a. holding member formed of Wire screen material properly secured to the tire, springs connected between the hub and holding member, and

o means adapted to stiien the wheel sideways without subtracting from the cushioning e'ffeet of the springs. 1

2. A vehicle wheel, comprising ajhub, a tire of resilient material, springs connected between the hub and tire, means Jfor moving the outer ends of the springs in relation to a certain adjacent spring, consisting of shanks engaging the outer ends of the springs, slides on the shanks, dove-tailed portions on the slides, plates formed with dove-tailed grooves for the dove-tailed portions, cams on said plates, and means for urging the slides against the cams, and means adapted to stifen the lWheel sideways without subtracting from the cushioning eii'ect of the springs.

3. A vehicle wheel comprising a hub, a tire comprising resilient material substantially concentric with said hub, a holding member formed of wire net work secured to said tire, spaced apart, sets of clamping members mounted on said holding member, each clamping member of one set being arranged alternately with respect to the clamping members of the other set, springs disposed between said hub and tire each attached attheir outer ends to one set of clamping members, and means adapted to stien the wheel sideways without subtracting from the cushioning effect of the springs comprising extensible spoke elements attached at their outer ends to the other set of clamping members. y

4. A vehicle Wheel of the class described comprising a hub, a tire of resilient material disposed concentrically relative to said hub comprising inner peripheral edge flanges, a holding member comprising wire netting mounted on the inner periphery of said tire and disposed at its edges aroundthe peripheral edge flanges thereof, spaced apart clamping members for securing said holding members to said tire, springs connected between the hub and holding member, and means adapted to stiften the wheel sideways without subtracting from the cushioning effeet of the spring.

5. A vehicle wheel. comprising a hub, a tire comprising resilient material disposed concentrically of said hub, springs attached at their inner ends to said hub and at their outer ends to said tire, additional means disposed between said tire and said hub for retaining the same in spaced relation, and adjustable brackets slidably supported on the inner periphery of .said tire and attached to the outer ends of said springs adapted to be adjustably positioned for varying the tension of the latter.

6. A vehicle wheel comprising a hub,` a. tire comprising resilient material disposed eoneentrically of said hub, a holding member comprising a wire netting mounted on the inner periphery of said tire, clamping members comprising inner and outer plates disposed on opposite side of said wire netting, bolts securing said plates to said netting, and spring members each attached at.

one end to one of said clamping members and at its other end to said hub for retaining the latter and said tire in spaced relation.

In testimony whereof I have aiiixed my signature.

JUAN B. DviLA. 

